From: Avi Kivity <avi@redhat.com>
To: kvm@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Subject: [PATCH QEMU-KVM 2/7] test: set up per-cpu area
Date: Mon, 21 Sep 2009 11:55:33 +0300 [thread overview]
Message-ID: <1253523338-22784-3-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1253523338-22784-1-git-send-email-avi@redhat.com>
Currently sharing space with the stack.
Signed-off-by: Avi Kivity <avi@redhat.com>
---
kvm/user/test/x86/cstart64.S | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/kvm/user/test/x86/cstart64.S b/kvm/user/test/x86/cstart64.S
index e5554ba..f1a9d09 100644
--- a/kvm/user/test/x86/cstart64.S
+++ b/kvm/user/test/x86/cstart64.S
@@ -80,9 +80,19 @@ mb_flags = 0x0
# multiboot header
.long mb_magic, mb_flags, 0 - (mb_magic + mb_flags)
+MSR_GS_BASE = 0xc0000101
+
+.macro setup_percpu_area
+ lea -4096(%esp), %eax
+ mov $0, %edx
+ mov $MSR_GS_BASE, %ecx
+ wrmsr
+.endm
+
.globl start
start:
mov $stacktop, %esp
+ setup_percpu_area
call prepare_64
jmpl $8, $start64
@@ -142,6 +152,7 @@ ap_start32:
mov %ax, %ss
mov $-4096, %esp
lock/xaddl %esp, smp_stacktop
+ setup_percpu_area
call prepare_64
ljmpl $8, $ap_start64
--
1.6.4.1
next prev parent reply other threads:[~2009-09-21 8:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-21 8:55 [PATCH QEMU-KVM 0/7] test: more IPI tests Avi Kivity
2009-09-21 8:55 ` [PATCH QEMU-KVM 1/7] test: issue EOI after IPI Avi Kivity
2009-09-21 8:55 ` Avi Kivity [this message]
2009-09-21 8:55 ` [PATCH QEMU-KVM 3/7] test: optimize smp_id() Avi Kivity
2009-09-21 8:55 ` [PATCH QEMU-KVM 4/7] test: add conditional execution for vmexit tests Avi Kivity
2009-09-21 8:55 ` [PATCH QEMU-KVM 5/7] test: add ipi latency test Avi Kivity
2009-09-21 8:55 ` [PATCH QEMU-KVM 6/7] test: Add ipi_halt benchmark Avi Kivity
2009-09-22 1:54 ` Marcelo Tosatti
2009-09-22 6:12 ` Avi Kivity
2009-09-21 8:55 ` [PATCH QEMU-KVM 7/7] test: Auto-tune vmexit test Avi Kivity
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